LRHaGB combination

 

LRGB combination

Details

Planetary Nebula M27 (NGC 6853), type 3a+2, in Vulpecula

Probably discovered by Hodierna before 1654. Independently discovered by Charles Messier 1764.

Right Ascension 19 : 59.6 (h:m)
Declination +22 : 43 (deg:m)
Distance 1.25 (kly)
Visual Brightness 7.4 (mag)
Apparent Dimension 8.0 x 5.7 (arc min)

Seeing: Good - Pickering 7 rating
Optic(s): Celestron 11" Schmidt Cassegrain @ f/10
Mount: CGE equatorial
Camera: Artemis Art 4021 - monochrome CCD – 2048 x 2048 px ; 16x16 mm; 7.4 µm x 7.4 µm
Filters: Astronomics LRGB Set, SupaSlim TrueTechnology Computerized Filter Wheel
Dates/Times: 2011-07-28
Location: Rozhen Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exposure Details:

L: 26x1 min, Ha: 5x1 min, R, G and B: 10x1 min each of colours (bIN1), Total ExposureTime - 61 min

More details: Dark frames reduction
Guiding: None
Processing:

AIP4Win / PixInsight / PS

close

All Contents copyright © Velimir Popov unless otherwise noted.